1. Nails on a chalkboard
  2. Stoichiometry problems
  3. Sharing a room/bed with someone who snores
  4. Constipation
  5. People who chew with their mouth open
  6. SpongeBob marathons
  7. Group texts
  8. People who walk really freaking slow
  9. Frat boys who literally wear the same clothing and travel in packs
    I take this one back they are actually worse than heather
  10. Dawn from Buffy the vampire slayer
  11. Donald trump